baber/WOPTO huggingface dataset:
Patent CA-1327042-C (CA)
Title: Process for preparing thiazolobenzimidazoles and intermediates used therein
Inventor: SHEPHERD ROBIN G
IPC: C07D513/04
Filed: 1988-01-20
Granted: 1994-02-15
Abstract: ABSTRACT            The invention concerns a process for preparing a thiazolo[3,2-a]benzimidazole of formula I                                   I   in which formula n is 1 or 2, and R1 is hydrogen, lower alkyl, lower alkoxy, trifluoromethyl or halo, or a salt thereof which comprises dehydrating a compound of formula II,              II   or a salt thereof wherein n and R, are as defined above, and COOR is an acid or ester function in the presence of an acid selected from sulphuric, sulphonic and phosphoric acid or mixtures thereof and if desired or required an inert solvent provided that if water is present then the amount of water is less than about 15% by volume of the acid, the reaction being carried out with heating if necessary.
Patent CA-1329240-C (CA)
Title: Clock phase detector
Inventor: HESPELT VOLKER
IPC: H04L27/227
Filed: 1988-03-09
Granted: 1994-05-03
Abstract: ABSTRACT         The invention relates to a clock phase detector for clock pulse synchronization in a receiver for synchronous data transmission.  The timing error detector receives, as the demodulated received signal, the in-phase component and the quadrature component from the product of the received signal with the output signal of the carrier oscillator, with these components being low-pass filtered so that the signal terms of the double frequency are suppressed.  The output signal serves as control signal uTI for the clock pulse generator.  The timing error detector includes two bandpass filters fed with the demodulated received signal and a linkage circuit which generates the control signal from the complex bandpass output signals.  The detector is characterized in that a further linkage circuit VF is provided which generates a control signal Uf to control the frequency of the carrier oscillator from the complex output values of bandpass filters BP + (Figure 4).
Patent CA-1291784-C (CA)
Title: Airflow switch for air ducts
Inventor: ZOLUDOW RICHARD S
IPC: G01P13/00
Filed: 1988-03-24
Granted: 1991-11-05
Abstract: AIRFLOW SWITCH FOR AIR DUCTS              Abstract of the Disclosure An airflow switch for sensing airflow or lack OF same in an air duct comprising a housing base, mounting in side-by-side relation an adjustable range spring and a single-pole double-throw  snap action microswitch, with the microswitch having its actuating lever operated by a bellcrank type input lever against an adjustable spring bias applied thereto by the range spring, with the housing base having an open center across which is secured a metallic disc that forms with the base an essentially isolated chamber in which the input lever is disposed, with sealing gasketing being applied to and about the disc rim, and with the disc being formed adjacent the mid portion thereof with a cross aperture through which the shank of a vane assembly extends for securement to the bellcrank input lever for operation of the vane assembly against the range spring bias; the vane assembly includes a vane adapted to be disposed well within the duct, and the vane assembly shank is dust sealed thereabout adjacent the disc through aperture by flexible sealing fingers that dust seal the chamber, in which the bellcrank operates, from dust in the duct airflow.
Patent CA-1318773-C (CA)
Title: Method for surface bonding of ceramic bodies
Inventor: NEWKIRK MARC S
IPC: C04B37/00
Filed: 1988-05-19
Granted: 1993-06-08
Abstract: ABSTRACT      Two or more ceramic bodies are bonded together by oxidizing with a vapor-phase oxidant molten metal obtained from a body of precursor metal to form an oxidation reaction product bond.  The oxidation reaction product is formed between adjacent facing, substantially congruent surfaces of the ceramic bodies and bridges the surfaces, thus bonding the ceramic bodies to each other.  Promoters may optionally be used to facilitate formation of the oxidation reaction product.
Patent CA-1279733-C (CA)
Title: Outer tape automated bonding semiconductor package
Inventor: BROWN KENNETH M
IPC: H01L23/498
Filed: 1988-06-07
Granted: 1991-01-29
Abstract: OUTER TAPE AUTOMATED BONDING    SEMICONDUCTOR PACKAGE                ABSTRACT     A semiconductor package for protecting a semiconductor chip such as a Very Large Scale Integration chip and connecting it to an electrical circuit is disclosed.  The chip is bonded to a section of Tape Automated Bonding, (TAB), tape which contains a number of leads thereover, each lead has an inner lead section bonded to the chip and an outer lead section that extends beyond the outer perimeter of the tape, for connecting to the circuit.  The chip is enclosed in a housing which subtends an area slightly larger than the chip itself.          The inner lead sections project from the TAB tape into the housing and are bonded to the chip.  A metal layer under the TAB tape is connected to a number of the leads.  After the semiconductor package of this invention is assembled, the outer leads are attached to the associated circuit so as to connect the chip to the circuit.  The metal layer serves as a reference plane so the leads connected thereto supply a voltage that does not vary to sub-circuits on the chip.
Patent CA-1297048-C (CA)
Title: Monoclonal antibodies reactive with normal and oncogenic forms of the ras p21 protein
Inventor: CARNEY WALTER P
IPC: C07K14/82
Filed: 1988-07-07
Granted: 1992-03-10
Abstract: MONOCLONAL ANTIBODIES REACTIVE WITH NORMAL AND     ONCOGENIC FORMS OF THE ras p21 PROTEIN     ABSTRACT OF THE DISCLOSURE Monoclonal antibodies reactive with normal an oncogenic forms of the ras p21 protein.  The antibodies are secreted by hybridomas obtained by immunizing mice with the Ha ras p21 protein containing the arginine mutation at position 12 of the protein. The antibodies and immunoreactive fragments thereof of useful for detection, diagnosis, quantitation, staging and classification of normal and activated ras p21s in normal tissues, malignant and premalignant lesions.
Patent CA-1327612-C (CA)
Inventor: CAMERON CHARLES
IPC: B01J27/232
Filed: 1988-08-05
Granted: 1994-03-08
Abstract: Abrégé descriptif La présente invention concerne un procédé de conversion oxydante du méthane ou du gaz naturel en hydrocarbures supérieurs, notamment en éthylène et éthane, caractérisé en ce que l'on fait passer un mélange de méthane et d'oxygène sur une masse de contact constituée d'au moins un composé appartenant à la famille des carbonates des métaux des terres rares. Elle concerne en particulier l'utilisation des oxycarbonates de terres rares et en particulier l'oxycarbonate de lanthane, La2O2(CO3), comme masse de contact.
Patent CA-1319414-C (CA)
Title: Vented-pipe projector
Inventor: FANNING BRYCE L
IPC: H04R17/00
Filed: 1988-09-27
Granted: 1993-06-22
Abstract: ABSTRACT OF THE DISCLOSURE     A piezoelectrically-driven, resonant-pipe projector has formed therein vents to broaden the response of certain cavities resonances and to increase the response between these resonances.  The projector exhibits a relatively high electroacoustical efficiency, is capable of medium to high power output over the operating band, and is not depth dependent or depth limited.
Patent CA-1309847-C (CA)
Title: Tag and method of making same
Inventor: BENGE S EUGENE
IPC: H03H1/00
Filed: 1988-10-13
Granted: 1992-11-10
Abstract: Docket No. M-501 Abstract of the Disclosure This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling.  The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits.  The conductors of each pair are connected by welding to provide a reliable circuit.
Patent CA-1318429-C (CA)
Inventor: KRAMER ANDREAS
IPC: C08G73/12
Filed: 1988-12-15
Granted: 1993-05-25
Abstract: K-16818/=            Mixtures containing dicyanate or polycyanate compounds, substituted bicyclo[2.2.1]hept-5-ene-2,3-dicarboximides and thermoplastics Abstract of the Disclosure Heat curable mixtures comprising (a) 5 to 95 % by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof, (b) 95 to 5 % by weight of at least one compound of formula I or II                                                 (I)                             (II) or of a prepolymer of a compound of formula I or II, (c) 0 to 50 % by weight. based an the sum of (a) + (b), of at least one compound of formula III                       (III)  and (d) 0.1 to 50 % by weight, based on the sum of (a) + (b), of at least one thermoplastic having a glass transition temperature of at least 120°C, in which formulae above R1, R2 and R3 are each independently of one another a hydrogen atom or methyl, n is 1 or 2 and m is 2 or 3, R is hydrogen or an aliphatic, cycloaliphatic or aromatic radical, R' is an aliphatic radical, m- or p-phenylene or m- or p-phenyleneoxy, and R" is an organic radical or valency m containing 2 to 30 carbon atoms, are suitable for the production of mouldings such as prepregs or composites, coatings and bonds.
Patent CA-1332204-C (CA)
Inventor: BUSCH KENNETH W
IPC: G01N21/35
Filed: 1988-12-16
Granted: 1994-10-04
Abstract: ABSTRACT The means and method for observing infrared emission from excited molecules in samples of interest was investigated.  Over the wavelength interval from 1 to 5 µm, two strong emission bands were observed with a PbSe detector when organic compounds were introduced into an hydrogen/air flame.  The band at 4.3 µm (2326 cm-1) was due to the asymmetric stretch of carbon dioxide while the band at 2.7 µm was due to both water and carbon dioxide emission.  The carbon dioxide emission at 4.3 µm was found to be most intense at the tip of the flame, and was found to increase with the amount of organic compound introduced into the flame.  For chromatographic application, an optical filter was used to isolate the 4.3 µm emission band.
Patent CA-1305759-C (CA)
Title: Rapid signal validity checking apparatus
Inventor: KOELLE ALFRED R
IPC: G06K7/00
Filed: 1988-12-22
Granted: 1992-07-28
Abstract: RAPID SIGNAL VALIDITY CHECKING APPARATUS          ABSTRACT This invention relates to an improved signal reader for reading signals from transponders placed on moveable objects such as ship containars, automobiles or railroad cars. The reader sends out a continuous signal, which is modified by The information contained in the transponder attached to the moveable object.  Multiple antennas, each of which receive separate signals, may be multiplexed at the reader.  The improved circuit of the invention provides quick recognition of the receipt of a valid signal from a transponder or, in the alternative, the absence of such a valid signal.  The circuit of the invention first provides a detection pulse stream.  Each pulse of the detection pulse stream coincides in time with an expected edge of the predetermined pulse stream reflected back to the reader from the transponder.  A detection circuit is connected to receive the detection pulse stream at the same time it receives signals lo be evaluated.  The detection circuit detects the presence of pulse edges which are coincident with the pulses from the detection pulse stream, and provides a detection output signal in the event of such coincidence.  A counter counts the number of detection output signals from the detection circuit and provides a validity signal depending upon the number of detection output signals received for a given number of detection pulses.  A preferred embodiment of the invention also detects the number of background noise pulses when there are no pulses from the detection pulse stream.  These coincidences indicate the receipt of invalid data, and are subtracted in the counter as an invalidity signal.  The apparatus of the invention is thus capable of rapidly separating valid pulse streams from invalid ones and providing a validity or invalidity signal which may be used to control the multiplexing of a reader from one antenna to another.
Patent CA-1308647-C (CA)
Inventor: KUMMANN PAUL
IPC: F25J3/02
Filed: 1989-01-18
Granted: 1992-10-13
Abstract: "PROCESS AND APPARATUS FOR THE SEPARATION OF HYDROCARBONS"        Abstract of the Disclosure In a process for obtaining higher-boiling hydrocarbons from a gaseous stream, the latter is first partially condensed and the thus-formed liquid fraction is introduced into a rectification process whereas the gaseous fraction is scrubbed in a scrubbing column using condense residual gas from the rectification.  The thus-formed bottom product is likewise passed on to rectification.    In order to enhance the scrubbing step by condensed gas, higher hydrocarbons are admixed to this residual gas.  Thereby, on the one hand, the residual gas is subjected to improved initial condensation and, on the other hand, the scrubbing effect is enhanced.
Patent CA-1319747-C (CA)
Title: Acoustic sub-surface interrogator
Inventor: GUIGNE JACQUES Y
IPC: G01V1/38
Filed: 1989-04-12
Granted: 1993-06-29
Abstract: ABSTRACT           A positionable transducer array on a stationary platform proximate a layered site on the seabed coherently insonifies locations at the site with a signal having a selected power, resultant centre frequency, beamwidth, bandwidth, shape and incident angle.  A positionable receiver array on the platform captures the return signals.  Sub-surface acoustical properties of the location are then predicted from the return signals and a calculation of the speed of sound in water at the site.          Subsequent locations at the site are then interrogated and an interpolation is made of acoustical properties between locations to develop a model of the acoustical properties at the site.
Patent CA-1318837-C (CA)
Inventor: HAYES WILLIAM J
IPC: C21D5/00
Filed: 1989-06-05
Granted: 1993-06-08
Abstract: ABSTRACT OF THE DISCLOSURE        An austempered ductile iron composition with a mixed austenitic-bainitic structure is made by a method which enables the iron to withstand high cyclical stresses while having a high resistance to abrasion.          Articles such as automobile roller-follower camshafts that are made from the iron alloy may have portions thereof selectively austempered to reduce the overall cost and time required to manufacture the article.
Patent CA-1314580-C (CA)
Title: Linear motion bearing
Inventor: PESTER ANDREW L
IPC: F16C29/06
Filed: 1989-07-24
Granted: 1993-03-16
Abstract: ABSTRACT -    A linear motion bearing is provided having a rail, a bearing carriage movable along the rail, a number of recirculating rolling element tracks formed in the carriage for conducting recirculating rolling elements between load bearing tracks and return tracks, the rolling elements serving to support the carriage on the rail when they are in the load bearing track, a number of integral retainer and inner guides structures substantially supported on the bearing carriage and end caps including turnaround tracks connecting the load bearing tracks and the return tracks, the end caps receiving the integral inner guides of the retainer and inner guides structure.
Patent CA-1310542-C (CA)
Title: Combination bottom outlet saddle and sump
Inventor: DALRYMPLE THOMAS H
IPC: B61D5/00
Filed: 1989-08-10
Granted: 1992-11-24
Abstract: ABSTRACT OF THE DISCLOSURE        A combination bottom outlet saddle and sump is provided for a railway tank car.  The saddle member comprises an upper surface which conforms to the underside of the tank body and is attached thereto in surrounding relationship with an outlet opening formed in the tank body.  An opening is formed through the saddle member in fluid communication with the outlet opening.  A sump is recessed into the upper surface of the saddle member longitudinally spaced a short distance from the saddle member opening in fluid communication with the outlet opening.  A bottom outlet valve is mounted to the lower surface of the saddle member in fluid communication with the saddle member opening.  A recessed channel may be provided in the upper surface of the saddle member to permit fluid communication between the sump and the saddle member opening.  A skid assembly surrounds the entire saddle member.
Patent CA-1327717-C (CA)
Title: Alternate methods of side lobe reduction in holograms
Inventor: WREEDE JOHN E
IPC: G03H1/02
Filed: 1989-09-22
Granted: 1994-03-15
Abstract: ALTERNATE METHODS OF SIDE LOBE REDUCTION           IN HOLOGRAMS                  ABSTRACT OF THE DISCLOSURE        High side lobes shown in a hologram efficiency curve are suppressed by reducing the effective sensi-tivity of a holographic recording medium by a plurality of film layers of gelatin such that there is a continuous increase in sensitivity toward the center of the layers. This makes the recording medium more spectrally selective and increases the "see-through" characteristic.  A holo-graphic fringe pattern with a normally uniform modulation recorded in such holographic medium layers will produce a hologram having a modulation in refractive index which is virtually zero at the surfaces and which increases toward the center of the medium.  The layers in the recording medium can have varying degrees of photosensitivity. However, when combined, the layers provide an overall sensitivity which can be depicted as a generally sinusoidal curve.  The generally smooth transition in sensitivity from one layer to the next is largely achieved by the mixing of layers at their interfaces.
Patent CA-1323048-C (CA)
Inventor: HALL KENNETH
IPC: A63C1/32
Filed: 1989-09-26
Granted: 1993-10-12
Abstract: "ICE HOCKEY SKATE BLADE"                    Abstract of the Disclosure An ice hockey skate blade has a top edge, a skating edge, and a toe portion.  The skating edge has a gliding portion behind the toe portion.  The gliding portion width is less than the top edge of the blade and the toe portion of the blade.    The front toe portion of the blade allows contact with the ice and has a width equivalent to standard hockey ice skate widths,  while the gliding portion of the blade behind the toe section has a width corresponding to ice skate racing blades.
Patent CA-1328968-C (CA)
Inventor: CAKMAKCI MEHMET Y
IPC: B29C67/00
Filed: 1989-09-27
Granted: 1994-05-03
Abstract: ABSTRACT: An improved decorative automotive vehicle trim strip and method and apparatus for forming are provided by reshaping an end of a previously extruded length of thermoplastic material. The surface of the length of thermoplastic material intended for viewing is maintained at a cold temperature, well below the softening point of the thermoplastic material, during the reshaping operation. The length of thermoplastic material is heated during reshaping by a mold section heated to 400° to 410°F pressed against the surface intended to be affixed to the vehicle.
Patent DK-157936-C (DK)
Inventor: BONNOME JEAN-PIERRE
IPC: C12G3/08
Filed: 1983-03-23
Granted: 1990-08-13
Abstract: An alcoholic liquid obtained by fermenting a must or a wort is initially subjected to ultrafiltration or to reverse osmosis to obtain a permeate which contains a higher proportion of water and alcohol than the starting liquid and a concentrate which contains a higher proportion of the substances that flavor the starting liquid. The permeate is then subjected to reverse osmosis using a membrane which is substantially impermeable to alcohol, while still being permeable to water. The concentrate from the second step is added to the concentrate from the first step to produce a liquid which has a higher concentration of alcohol than the starting liquid. The resulting liquid may be useable at said higher concentration as a beverage, or it may be used for transport and/or for storage, with water being added to thereto to restore the beverage substantially to its starting condition before being drunk.
Patent DK-162255-C (DK)
Inventor: GRAU ULRICH
IPC: A61K47/42
Filed: 1985-06-06
Granted: 1992-03-16
Abstract: 1. Pulsation damper (10) for elastically disposed objects (26), including a damper housing which is at least partially filled with 3 viscose damping medium (12) and which is open at the top relative to its installation position ; a hollow plunger pipe (17) which is open at the bottom relative to its installation position and continuously conically formed and which can be moved up and down into the damper medium (12) ; a top plate (16), linked with the plunger pipe (17), for receiving the object (26), in which respect the plunger pipe (17) is connected with the top plate (16) by its smaller diameter (28), and its larger diameter (29) is emersed into the damper medium (12), characterised in that the interior of the plunger pipe (17) is divided into two chambers by a sealing plate (22) ; that a buffer plate (24) including passages (33) is disposed in the larger diameter (29) at the bottom of the plunger pipe (17) which plate carries a plurality of interior pipes (21) which extend into the plunger pipe (17), the upper ends of the interior pipes (21) being at a distance (35) from the sealing plate (22), and the plunger pipe (17) has a plurality of peripheral bores (19) in the casing surface below the sealing plate (22).
Patent DK-159543-C (DK)
Inventor: TSCHUDIN-MAHRER ROLF
IPC: B65D71/02
Filed: 1984-10-23
Granted: 1991-04-02
Abstract: A package of foam sealing strip of delayed rebound and of foam held in compressed state by the wall of the package. The wall of the package is formed of two flexurally rigid panels which protrude on both sides of the sealing strip and are held together by a plurality of hoops arranged spaced apart from each other.
Patent DK-163614-C (DK)
Inventor: COSTA RICHARD
IPC: G09F9/30
Filed: 1983-11-04
Granted: 1992-08-24
Abstract: 1. Display matrix (1) formed by the downstream ends (2) of an assembly of optical fibers (3) whose upstream ends are placed so as to receive light from a light source, of the type in which the optical fibers (3) are associated individually or in very small assemblies with electromechanical occultating devices (6) placed at the front of the downstream end (2) of the fibers in question (3) and capable of modifying the color and/or intensity of the light emitted to the front of the matrix, and devices (13) controlling the occulting devices (6) making it possible selectively to control the occulting of determined groups of fibers so as to transform the display as desired, characterized in that each occulting device comprises a disc (6) containing different occulting sectors (8, 9, 10) capable of being interposed on the path of light, as a function of a rotation controlled by the control device (13), each disc being driven in rotation by a rotary motor with two positions of stable equilibrium, the rotation of which being controlled by current pulses, and in that the motor comprises a rotor (14) rotating freely about an axis (7) and constituted by a small permanent magnet with two poles oriented radially with respect to the axis (7), a stator (15) formed by a circuit magnetizable by pulse made of a material having good remanence, presenting two poles (16, 17; 16', 17') diametrically opposite with respect to the axis (7) of the rotor, the stator comprising near each of its poles an indexing element (18, 19; 18', 19') non-aligned with said poles of the stator adapted to destabilize the position of the rotor at the moment of a pulse.